Turn Off Local iCloud Backup on High Sierra?

I have three Macs in a local network. I just clean installed High Sierra to my Mac Pro and the system drive is only 240GB.

My iCloud is already mirrored (backed up) on my iMac and MacBook Pro.

*Is there a way to turn off the local iCloud backup just on the Mac Pro, the computer to which I just clean installed High Sierra?

Thanks.